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Rev. 4.00 Sep. 14, 2005 Page xiii of l
Contents
Section 1 Overview................................................................................................1
1.1 Features.................................................................................................................................. 1
1.2 Block Diagram....................................................................................................................... 7
1.3 Pin Assignments..................................................................................................................... 8
1.4 Pin functions .......................................................................................................................... 9
Section 2 CPU......................................................................................................25
2.1 Registers............................................................................................................................... 25
2.1.1 General Registers.................................................................................................... 29
2.1.2 Control Registers .................................................................................................... 31
2.1.3 System Registers.....................................................................................................35
2.1.4 DSP Registers.........................................................................................................35
2.2 Data Formats........................................................................................................................42
2.2.1 Register Data Format (Non-DSP Type).................................................................. 42
2.2.2 DSP-Type Data Formats......................................................................................... 42
2.2.3 Memory Data Formats............................................................................................44
2.3 Features of CPU Core Instructions ...................................................................................... 44
2.4 Instruction Formats.............................................................................................................. 48
2.4.1 CPU Instruction Addressing Modes ....................................................................... 48
2.4.2 DSP Data Addressing ............................................................................................. 51
2.4.3 CPU Instruction Formats ........................................................................................ 58
2.4.4 DSP Instruction Formats.........................................................................................61
2.5 Instruction Set...................................................................................................................... 67
2.5.1 CPU Instruction Set ................................................................................................ 67
2.6 DSP Extended-Function Instructions................................................................................... 81
2.6.1 Introduction............................................................................................................. 81
2.6.2 Added CPU System Control Instructions ............................................................... 82
2.6.3 Single and Double Data Transfer for DSP Data Instructions.................................. 84
2.6.4 DSP Operation Instruction Set................................................................................88
Section 3 DSP Operation .....................................................................................99
3.1 Data Operations of DSP Unit...............................................................................................99
3.1.1 ALU Fixed-Point Operations.................................................................................. 99
3.1.2 ALU Integer Operations ....................................................................................... 104
3.1.3 ALU Logical Operations....................................................................................... 105
3.1.4 Fixed-Point Multiply Operation............................................................................107